superword-mode and clojure-mode interact poorly.

[johanatan]

When superword-mode is enabled simultaneous to clojure-mode, the cursor will get stuck at the end of specific lines when advancing one word at a time.

[johanatan]

Repro steps are as follows:

1. enable clojure mode.
2. enable superword mode.
3. advance one word at a time until you get stuck at the end of a line (does not happen on every line).

@dpsutton

[johanatan]

@duianto please let me know if you require more detail. thank you.

[dpsutton]

I was unable to reproduce this on my non-spacemacs distro with clojure-mode and superword-mode enabled. What makes you think its these two packages interacting?

[johanatan]

I reproduced this on a fresh machine w/ a fresh install of spacemacs (default config, no customization). I have no knowledge of whether it reproduces on vanilla emacs or not. The combination of things here is: a) spacemacs b) superword-mode c) clojure-mode.

[duianto]

Confirmed

In this example file:
https://github.com/clojurebook/ClojureProgramming/blob/master/ch03-game-of-life/src/com/clojurebook/collections/life.clj

With the url added on the first line as a comment:

;; https://github.com/clojurebook/ClojureProgramming/blob/master/ch03-game-of-life/src/com/clojurebook/collections/life.clj

pressing w, stops at the end of the url
and after function names with a dash:
(defn empty-board
(defn count-neighbours
etc.

There's an open issue about it upstream in the emacs-evil/evil repository:
evil-forward-word-begin doesn't work with superword-mode emacs-evil/evil#721

There's a comment with a possible workaround: emacs-evil/evil#721 (comment)

I am experiencing this issue as well.

If it helps, I found that disabling superword-mode and using this workaround helps: https://emacs.stackexchange.com/a/27350/2676

;; For python
(add-hook 'python-mode-hook #'(lambda () (modify-syntax-entry ?_ "w")))
;; For ruby
(add-hook 'ruby-mode-hook #'(lambda () (modify-syntax-entry ?_ "w")))
;; For Javascript
(add-hook 'js2-mode-hook #'(lambda () (modify-syntax-entry ?_ "w")))

which allows evil-mode to consider _ as part of the word. It's not a great solution, but it somewhat mimics superword-mode

[jleonard-r7]

This issue is actually fairly important to me. It would be nice if it could get some attention at some point. My editing experience would improve tremendously with its resolution.

[duianto]

It's been reported upstream:
evil-forward-word-begin doesn't work with superword-mode
emacs-evil/evil#721

Could you ping them in that thread.
It would also help non-Spacemacs users if it was fixed upstream.

[jleonard-r7]

This is still an issue.